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Effects of Sustained-Release Beraprost in Patients With Primary Glomerular Disease or Nephrosclerosis: CASSIOPEIR Study Results

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Nakamoto, Hidetomo; Yu, Xue-Qing; Kim, Suhnggwon; Origasa, Hideki; Zheng, Hongguang; Chen, Jianghua; Joo, Kwon Wook; Sritippayawan, Suchai; Chen, Qinkai; Chen, Hung-Chun; Tsubakihara, Yoshiharu; Tamai, Hirofumi; Song, Sang Heon; Vaithilingam, Indralingam; Lee, Kang Wook; Shu, Kuo-Hsiung; Hok-King Lo, Stanley; Isono, Masanao; Kurumatani, Hajimu; Okada, Kiyonobu; Kanoh, Hiroyuki; Kiriyama, Takashi; Yamada, Shunsuke; Fujita, Toshiro

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Blackwell Publishing Inc.
Therapeutic Apheresis and Dialysis, Vol.24 No.1, pp.42-55
TRK-100STP, a sustained-release preparation of the orally active prostacyclin analogue beraprost sodium, targets renal hypoxia. This study aimed to show the superiority of TRK-100STP over placebos in patients with chronic kidney disease (with either primary glomerular disease or nephrosclerosis) to determine the recommended dose. CASSIOPEIR (Chronic Renal Failure Asian Study with Oral PGI(2) Derivative for Evaluating Improvement of Renal Function) was a randomized, double-blind, placebo-controlled study conducted at 160 sites in seven Asia-Pacific countries and regions. Eligible patients (n = 892) were randomized to TRK-100STP 120, 240 mu g, or placebo for a treatment period of up to 4 years. The primary efficacy endpoint was time to first occurrence of a renal composite: doubling of serum creatinine or occurrence of end-stage renal disease. No significant differences were observed in composite endpoints between TRK-100STP and placebo (P = 0.5674). Hazard ratios (95% CI) in the TRK-100STP 120 and 240 mu g vs. placebo groups were 0.98 (0.78, 1.22) and 0.91 (0.72, 1.14), respectively. The overall incidence of adverse events and adverse drug reactions was comparable between treatment arms.
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